Abstract:
The present photosensitive resin composition 2 comprises a polyamic acid resin 4, a photosensitive agent, a dispersible compound 3 dispersible in the polyamic acid resin 4, and a solvent. The porous resin is obtained by removing the solvent from the photosensitive resin composition 2 to form a composition in which the dispersible compound 3 is dispersed in the polyamic acid resin 4, removing the dispersible compound to make the composition porous, and curing the porous photosensitive resin composition. The porous resin enables forming a fine circuit pattern and has a low dielectric constant and, when used as an insulating layer of a circuit board, brings about improved high frequency characteristics.
Abstract:
The present invention provides a composition comprising (a) a thermally decomposable polymer and (b) a siloxane oligomer evenly dissolved in (c) an organic solvent; a composition comprising (a) a thermally decomposable polymer, (b) a siloxane oligomer, and (c) an organic solvent in which both of the ingredients (a) and (b) are soluble; a method for forming a low-permittivity film characterized by applying the composition to a substrate to form a composite film comprising the thermally decomposable polymer and the siloxane oligomer evenly compatibilized therewith and then heating the resulting film to condense the siloxane oligomer and remove the thermally decomposable polymer; a method for forming a low-permittivity film characterized by applying the composition to a substrate to form a composite film comprising the thermally decomposable polymer and the siloxane oligomer evenly compatibilized therewith, subsequently conducting a first heating step in which the siloxane oligomer is crosslinked while keeping the thermally decomposable polymer remaining in the film, and then conducting a second heating step in which the thermally decomposable polymer is removed; a low-permittivity film formed by either of the methods for low-permittivity film formation; and an electronic part having the low-permittivity film.
Abstract:
An electronic device including a panel, an interface board, a flexible flat cable, and a pad. The panel includes a first connector. The interface board includes a second connector that does not oppositely face the first connector. The flexible flat cable connects the first connector and the second connector, and includes a bend portion. The pad is disposed in the bend portion.
Abstract:
A flexible printed circuit and a bracket structure for the hard disk drive. The flexible printed circuit includes a base layer, a circuit layer provided on the base layer, a cover layer provided on the circuit layer, and a filter layer interposed between the base layer and the circuit layer. Also, the bracket structure includes a flexible printed circuit for driving an actuator, a bracket connected to the flexible printed circuit, and a filter interposed between the flexible printed circuit and the bracket. Thermal asperity caused by fine particles in the hard disk drive is prevented so that performance deterioration of the hard disk drive is prevented and reliability thereof is improved.
Abstract:
The present invention provides a conductive material having superior bending property and superior bending resistant property and a method for manufacturing the same. This object is achieved by a conductive material comprising a substrate and a conductive portion formed within the substrate, wherein a change ratio in the electric resistance values before and after a bending resistant property test, in which the conductive portion is bent by 180 degrees and a load of 1 kg/cm2 is imposed on the bent portion for one hour, is set within a range of ±10%.
Abstract translation:本发明提供具有优异的弯曲性和优异的抗弯曲性的导电材料及其制造方法。 该目的通过包括基板和形成在基板内的导电部分的导电材料来实现,其中导电部分弯曲180度的抗弯曲性试验之前和之后的电阻值的变化率和 在弯曲部分施加1kg / cm 2的负荷1小时,设定在±10%的范围内。
Abstract:
A layered component is described herein that includes: a substrate; a dielectric material having a plurality of pores, wherein the material is coupled to the substrate; and a self-assembled diffusion blocking material coupled to the dielectric material, wherein the diffusion blocking material is attracted to the dielectric material. A layered component is also described herein that includes: a substrate; a dielectric material having a plurality of pores, wherein the material is coupled to the substrate; and a self-assembled diffusion blocking material coupled to the dielectric material, wherein the diffusion blocking material reacts with the dielectric material. A layered material is described that includes: a) a porous material comprising a porous surface; and b) a layer of blocking material comprising reactive functionalities coupled to the porous surface, wherein the interaction of the reactive functionalities with the porous material forms a diffusion blocking layer. Methods are also described of minimizing the diffusion of metal atoms, reactive etchants or CVD/ALD precursor materials into a material having a plurality of pores are disclosed herein that include: a) providing a precursor material that comprises a carbon-including material; b) providing a solvent carrier solution; c) combining the precursor material and the solvent carrier solution to form a diffusion blocking reactive solution; and d) applying the diffusion blocking reactive solution to the material having a plurality of pores to form a diffusion blocking material.
Abstract:
A board that may include for example a first conductive area on a first side and a second conductive area on a second side of such board. The board may be fitted with a plurality of holes that may for example open or end on both such first side and such second side of such board. A conductive material in the form of for example a liquid or gel may be applied or for example painted onto one or both sides of such board so that such material may for example substantially fill some or all of such holes and may establish a connection through which an electric current may pass from for example the first conductive area to the second conductive area. A switch having for example a board with a plurality of holes running through such board from a first side to a second side. A conductive material may for example be applied to such board so that such material substantially fills for example two or more of such holes and may be capable of forming an electrical connection between a conductive area on a first side of such board and a conductive area on a second side of such board. A method of forcing a conductive liquid into a plurality of holes in a board so that the liquid forms for example a connection capable of carrying a current between a conductive area on a first side of such board and a conductive area of a second side of such board.
Abstract:
A vent assembly (50) for an electronic control module (28) is provided. The vent assembly (50) may be adheringly coupled to a printed circuit board (38). The vent assembly (50) being adapted to prevent the ingress of moisture and permit the egress of certain gases.
Abstract:
Further, a system is provided for dissipating heat from a semiconductor module including a semiconductor die and the unitary heat sink. The heat sink comprising a unitary body having both a porous and non-porous portion is provided. The non-porous portion is attached to the semiconductor die and configured to transfer heat to the porous portion for dissipation into the environment. In addition, a method for manufacturing the heat sink is provided.
Abstract:
A compression function layer 60 is provided on at least one board surface. The compression function layer 60 adds a function of being compressed by receiving pressure in the direction of the board thickness to the resin board 10 which includes this layer. Thereby a sufficient pressure is applied to conductors 14.